Railway selective apparatus.



S. R. WRIGHT n (LL. DEIHLE. RAILWAY SELEGTIVA; APPARATUS. APPLIOTIONFILED AUG. 24, 1908.

Patented July 20, 1909. A6 SHEETS-SHEET l.

`F IG .2.

, A E f1 f Wl-TN Essss: 4M

S. R. WRIGHT & G. L. DEIHLE.

RAILWAY SELEGTIVE APPARATUS.

APPLICATION FILED AUG. 24, 1908.

Patented July 20, 1909.

FIGA.

FIG.

' ZI a WrrNEssEs: 25

-MQWM Ammzw4 s. GRAHAM eo.. FHuWLIIl-IOGRAPMERS. wAsHmnIoN D c S. R.WRIGHT & C. L. DEIHLB.

RAILWAY SELEGTIVB APPARATUS.

APPLICATION FILED AUG. 24, 1906.

928,57' 1. Patented July 2o, 1909.

6 SHEETS-SHEET 3.

F,|G.6@. FIG;

r/36 v T 53 a@ 36 5B 40 37 58 t F 53 5 0 5l 85 50 49 l i I \49 4/ i I 571 l E 46 48 (E l Q 1 6/ J 56D i y 46 I WITNEssEs: l /INv l-Qns: wwwZd'fd/LWf-L S. R. WRIGHT a GQL. DEIHLE. RAILWAY SELEGTIVB APPARATUS.

APPLICATION FILED AUG. 24, 190s.'

9218,571. Patented July 20, 1909.

ANunzw. nA Gamm cc.. momurnouurwsns. wAsmNuIaN. u c.

6 SHEETS-SHEET 4.

S. B.. WRIGHT & C. L. DEIHLE. RAILWAY SELEGTIVB APPARATUS.

APPLIGATION FILED AUG. 24, 190e.

l 928,571. Patented July 2o, 1909.

6 SHEETS-SHEET 5.

WITNESSS; n dlNvENTozlj/s: @giunge u) M A@ Mouw. B, annum covuoto-Llmoamvwins, wnlunaron. n c.

S. R. WRIGHT & C. L. DEIHLE.

RAILWAY SELEGTIVB APPARATUS. APPLICATION FILED AUG. Z4, 1908.

` 928,57 1. Patented July 2o, 1909.

e SHEETS-SHEET s.

lmmuwA a www; om mvoumaurnins. wlsmunml. u C.

narran srarns PATENT orricn.

SELDEN R. WRIGHT AND CHARLES L. DEIHLE, OF ROCHESTER, NEW YORK,ASSIGNORS TO TELEGRAPH SIGNAL COMPANY, OF ROCHESTER, NEW YORK, ACORPORATION OF NEW YORK.

To all whom 'it' may concern:

Be it known that we,SnLDnN R. farci-IT and CHARLES L. DniHLn, citizensof the United States, and residents of Rochester, in the county ofMonroe and State of New York, have invented certain new and usefulImprovements in Railway Selective Apparatus, of which the following is aspecification.

rl'his invent-i on relates to railway selective apparatus, and consistsin the mechanism herein. described and claimed.

The object of the invention is to provide means whereby a translatingdevice may be operated at any selected station on the line, withoutoperating the one at any other signal. rThe translating device may set asemaphore or ring a bell.

In the drawings Figure 1 is a front elevation of a master selector ortransmitter; Fig. 2 is a vertical section thereof, on the line 2 2 ofFig. l; Fig. 3 is a front elevation of a local selector or receiver;Fig. l is a vertical section on the line 1 -t of Fig. 3; Fig. 5 a topplan of certain parts of the same instrument; Fig. 6 is a frontelevation of the semaphore releasing device; Fig. 7 is an end elevationthereof; and Fig. 8 is a diagram of the apparatus showing its connectionwith a telephone line and a series of semaphores. n

The master selector (Figs. 1 and 2) comprises a motor, and a movableswitch or contact that is actuated thereby upon change of the electricalcondition of anelectr'omagnet. The said motor, in the present instance,consists of a clock mechanism 1, the primary shaft 2 of which isactuated by means of a weighted cord 3 wound upon a drum 4t. The motoris fixed to a suitable support 5 that may be attached to a wall. Anelectromagnet 6 is mounted within the motor-frame, and when energized,moves a pivoted armature 7. One end of a shaft S is held against saidarmature by the action of a spring 9 that presses against a pinion 10fixed on the shaft. Said pinion meshes with the motor, and the shaft 8is thus revolved continuously as long as the motor runs. The outer endof the shaft S carries a friction disk 11 that constitutes one member ofa friction clutch. A disk 12, fixed to a separate shaft 13, constitutesthe other member of the clutch. The shaft 13 is revolubly supported inbearings let and l5, and carries the movable switch or Contact 16.

Speccation of Letters Patent.

Application led August 24, 1908.

RAILWAY sELncTIvE APPARATUS.

Patented July 20, 1909.

Serial N0. 450,086. Y

Above the motor-frame is an arc 17 of metal, insulated from the saidframe by a vulcanite support 17a. In sactarc are holes or sockets IS,any one of which is adapted to receive the metal plug 19 thatconstitutes a variable contact. It is obvious that no electricalconnection between the motorframe l and the plug 19 is possible, exceptthrough the movable contact 16 when the latter has been moved by themotor mechanism a sufficient distance to bring it against said plug.Thus movement occurs only when the magnet 6 is energized, thus clutchingthe shaft 13 into connection with the shaft 8.

A disk 16a is fixed to the shaft 13, and carries a series ofcontact-strips 16D, 16c and 16d insulated from each other. Said contactastrips are adapted to connect electrically two brushes 16e which bear onthe periphery of the disk 16a. Said connection takes place when thecontact 16 is in a certain position,

hereinafter described.

On the armature 7 of the electromagnet 6 is a non-conducting block 7a(Fig. 2) in which is a metal strip 7b. A brush 6L rests normally on theblock Tabut when the armature is moved by the magnet, the brush 6a rests`upon the stripTb, and forms an electrical connection therewith.

The local selector (Figs. 3, 4 and 5), one of which is placed at eachstation on the line, is constructed like the Amaster selector except asto certain fixed contacts thereon.

All the motors throughout the system are identical and therefore, whenadjusted, run at exactly the same speed.

'The electromagnet 2O on the local selector, when energized, throws theclutch members 11 and 12 into engagement and the movable switch orcontact 21 is carried around, passing over the non-conducting sector 22.In said sector on each local selector are fixed contacts 23 and 24,across which the movable contact 21 passes. These fixed contacts areused for energizing two different translating devices in accordance withthe setting of the master selector. The contacts 23 and 24 on each localselector are dierently placed, but correspond to the position of onepair of the holes 1S on the master selector. The said contacts arecomparatively close together on each instrument, as shown. If themovable contacts of all the instruments on the line, including those ofthe master selector, are

started at the same instant (by simultaneously energizing all theelectromagnets for operating the Yfriction clutches),- the said movablecontacts will advance synchronously, and the contact 16 on the masterselector will strike the plug 19 at the same instant that the movablecontact 21 makes an electrical connection with the contact 23 on thelocal selector in which the positionof said contact 23 corresponds tothe position of said plug. The movable contacts on all the instrumentsare restored simultaneously to a zero position by the action of a weight13l that is hung on a cord that runs in a grooved pulley 13b on theshaft 13, and constitutes a restoring mechanism.

A disk 25 (Fig. 4) is fixed upon the shaft 13 and has a rim ofinsulating material in which are set metal contacts 26, .26a and 27. Thecontacts 26 and 26a are adapted to connect the ends of twin brushes 28,and conduct current from one brush to the other to complete a holdingcircuit, while the movable contact 21 is passing over the fiXed contact23 and a translating device is energized, in this case for setting asemaphore. An electrical circuit is completed through another pair ofbrushes 29 and the contact 27 and a translating device is energized, inthis case to ring a bell or similar device, when the contact 21 passesover the contact 24, and at the same instant a dierent holding circuitis formed through the brushes 28 and the contact 2G, to maintainenergization of the magnet 2O for a certain interval of time. Eachholding circuit comprises a circuit controller, consisting of a brush30, fixed at one end to a vulcanite block 31, and bearing at theopposite end upon a similar block 32 that is fixed to the upper end ofthe swinging armature 7. In the block 32 is set a metal strip 33 (Fig.5), which, when the magnet 2O is denergized, is not Vin contact with thebrush 30, but does touchthe latter when said magnet is energized. Asimilar circuit controller, consisting of a brush 30EL making contactwith another strip 33EL upon the block 32, closes the circuits of thetranslating devices when the magnet 2O is energized, so that unless theselector magnet is energized and the movable contact 21 is on a fixedcontact, the translating device is not energized.

The bell 34, which is used as a calling signal, may be fixed to theplate 5 beneath the motor 1, and may be rung by the usual make-and-breakelectromagnet 35. The armature 35a of the magnet 35 carries a stud orpin 35h. Said stud normally supports a weight 35c by projecting under ashoulder thereon, but when the bell rings, the said stud is removed andthe said weight falls. As the latter is slidably mounted on a guide rod35d, it falls along the said rod, and when at the bottom thereof,strikesa spring 35e fwhich is forced into contact with va button (Figs.G and 7) may be placed at a point convenient for connection with thedownhaul cord 36V leading to a semaphore blade outside the station. Saidcord has at its lower end a ring 37, which may be slipped over a hook 38that is pivoted on a board or plate 39.A rhe hook 38 has a segmentalgear on one end that meshes with a vertical rackbar 40. The latter isguided in a tube 41 and is pressed downward by a coiled spring 42therein. Attached to the lower end of said rack-bar is one end of alever 43 that is pivoted at 44. The opposite end of the lever is held,against the action of the spring 42, in the position shown in Fig. 6, by-engaging a notch in the end of a bell-crank 45 that is pivoted at 46.Said bell-crank is maintained in engagement with the lever 43 by aspring 47. r he horizontal arm of the bellcrank 45 extends through aslot 48 in a fixed vertical guide-rod 49. On said guide-rod is slidablymounted a weight 50, that is normally supported on a projecting pin 51on the armature 52 of an electromagnet 53. When said electromagnet isenergized, the armature 52 pulls the pin 51 away from the weight 50, andthe latter falls, striking the bell-crank 45. Said bell-crank is thusdisengaged from the lever 43, and the spring 42 then pushes the bar 40downward, which movement turns the hook 38 upward and permits the ring37 to slip ofl". The semaphore blade is then carried to the dangerposition by its counterweight in the usual manner. The parts are resetby the station operator, who replaces the weight 50 on the pin 51 afterthe magnet 53 is denergized, and pulls t-he lever 43 down until itengages the bell-crank 45 again. The ring 37 may then be replaced on thehook 38, which movement carries the semaphore to the safety position.

A Mounted on the plate 39 is a spring-actuated motor 54 which has aratchet connection with a non-conducting disk A. flat spring 5G,supported on the frame of said motor and insulated therefrom, rests onthe periphery of the disk 55 and is thus held in contact with a similarconductor 57. The motor 54 is partially wound up when the hook 38 ispulled down to the position shown in Fig. 6. An arm 58 fixed to saidhook is adapted to strike a stud 59 that projects from a verticallyguided bar G0, and to force the latter downward. At its lower end thebar 60 connects with a crank 61 on the springshaft of the motor. Whenthe hookl 38 flies up as before described, the bar 60 is no longer helddown by the stud 59, and the motor is free to unwind. The disk 55 isthus rotated by the aforesaid ratchet connection, and makes one completerevolution. Notches 62 are formed in the periphery of the said disk andthe spring 56 enters each in succession, alternately breaking and makingconnection with the conductor 57. This mechanism constitutes anindicator controller which actuates a suitable indicator such as thesounder K at the master selector station, and thus informs the operatorthere that the semaphore has been set.

In F ig. 8 is shown a method of using the instruments just described foroperating a selected signal at a distant station in connection with atelephone line. A and .B are the positive and negative line' wires,respectively, of a telephone circuit, in which the telephones P, P, P2and P3 are connected in parallel. Current for the telephone circuit issupplied from a suitable source of energy C. The master selector S islocated at the -station on the line from which it is desired to controlthe operations hereinafter described. -Usually this station is at oneterminal of the line as shown, and a local selector is placed at eachstation on the line. ln Fig. 8, three of said local selectors areindicated, L, L2 and L3. At each local station is also asemaphore-relating device or trip mechanism T, T2 and T3, respectively,each controlling a semaphore X in the manner hereinbefore described. Theline-'wire B is connected to the brushes 56 and 57 (Fig. 6) and thus iscontinuous through the tell-tale or indicating mechanism T on each trip.Said linewire is also connected through a telegraph relay M, M2 and M3at each local station, and to a pair yof similar relays Y and Z at theselector station. The wire B is grounded at each end, as at Gr and G. Tnthe wire B that leads tothe ground Gr, is placed a battery E, and thus acircuit may be established through the wire B and the ground,independently of the second telephone wire A and of the source ofenergy() A double-throw switch H is placed in the wire B whereby eitherrelay Y or Z may be cut in. The said wire B can also be connected to theground through the arc 17 and the frame of the motor 1 of the selectorS. A shunt B3 around the selector S is controlled by a switch dNormally, the switch H being open, no current flows from the battery Ethrough the line B; and the telephone circuit formed by the line-wires Aand B, and the battery C is also broken until the receiver of one of thetelephones is taken down. The relays M, M3 and M3 and .Y are thereforedene'rgized, and their armatures rest against the back-contact on the'frame of each.. In this position of the armature,y a local circuit isclosed at each station whereby the electromagnet on each vlocal selectorand on the master selector is energized, and the movable contacts arethrown into engagement with the continuously-running motors. The currentthen flows from the local battery 63 at each local selector through thewire 64, relay armature and back-contact wire 65 to magnet 20, andthence to battery through wire 66. At the master station, when nocurrent is on the line B, the local battery 67 sends current through thewire 68 and back-contact of the armature of relay Y to the wire 69,whence it flows through the magnet 6 and the wire '76 to the battery. Bythis current change in the wire B, the clutches of the master selectorand of all the local selectors are engaged, and the movable contactsthen travel to the ends of their respective paths of movement, wherethey remain until current flows through the line B. The latter conditionmay obtain either when the switch H is closed, or when the receiver ofone or more telephones T, etc. is taken down.

When the operator at the transmitting station wishes to call up anoperator at the local station L3, he may ring the bell 34 at the desiredlocal selector at will. T o do so, he closes the line B by throwing theswitch H to cut in the relay Y. This breaks the circuits through whichthe magnets 6 and 2O are energized, disengages all the clutches, and themovable contacts on all the instruments drop back to zero. He thenplaces the plug 19 i`n the hole 18 on the selector which corresponds inposition to the contact 24 on the local selector L3, and then breaks theline B by opening the switch J. The armatures of all the relays on theline immediately drop against their respective back` contacts andreestablish the magnet-energizing circuits just described. The movablecontacts on the master selector and on all the local selectors moveupward synchronously; and when the contact 16 strikes the plug 19, theline B is instantly closed, because current may then find a path fromthe ground to the negative pole of the battery E through the motor ofthe selector, the movable contact 16, plug 19, arc 17 and the wire 71.lThe movable contact 21 on the selected local selector, say, forinstance, on the instrument L3, covers the contact 24 thereon at theinstant the contact 16 closes the line. As the armatures of all the linerelays are attracted to their front-conn tacts when the line is closed,the magnets 6 and 2O are denergized, and the movable contacts on all theinstruments except- Z3 drop backfto Zero. On the latter instrument acircuit is established when the contact 21 is on the contact 24 wherebyits magnet 2O is held energized for a time. Vhen the aforesaid contacts21 and 24 are together, the brushes 28 rest on the metal strip 26, and acircuit is through wire 72, brush 30, contact 33, wire 73, brushes 28,contact 26, wire 711, through magnet 20, and to battery through wire 66.The magnet 2O is thus held energized and the contact 21 moves until t-hecontact 26 has passed the ends of the brushes 28, when the circuit isbroken, thus dener'gizing the said magnet, and the contact 21 returns tozero. Vhile the contact 21 is on the contact 24, the bell-ringingcircuit is established whereby the bell 3a on the instrument L3 is rung.Said circuit is: from battery 63, through wire 611, relay armature andfrontcontact, wire 76 to motor, through motor, movable contacts 21, ixedcontact 24 to wire 77, through bell-magnet 35, wire 7 8, to contact 33a,brush 30, and wire 66 to battery, thus ringing the bell 34, which, asbefore described, drops the weight 35C. Said weight brings together theVspring 35e and post 35i. In the :further movement of the movable contact21, when either of t-he contact strips 26, 26l or 27 touches the brushes29, a circuit is closed through which the ringing of the bell iscontinued toL attract the operators attention in case he failed to hearit the Iirst time. The circuit is: from battery 63, through wire 79,brushes 29, wire 80, spring 35e, 'post 35i,- wire 81, bell-magnet 35,wire 78, contact 33a, and brush 30a to battery.

If the operator at the master selector wishes to release the semaphoreat any local station, he may do so by performing the followingoperations: He first closes the switch J, and cuts in the relay Y bymeans .of the switch H. This closes the line B, and the movable contactson all the motors are returned to zero as before described. The operatornext places the plug 19 in the hole on the arc 17 which is in a positioncorresponding to t-he Contact 23 at the selected local station, thenopens the switch J (which places the contacts of the master selector inthe main line circuit) and throws the switch H over to cut out relay Yand to cut in relay Z, whereby the indicator or sounder K is retained ina local circuit but the master selector magnet is placed in 'a circuitcontrolled by the brushes 16@ and by the holding contacts 6a and 7 b.The line thus being opened again, the instruments operate the movablecontacts as before, and at the exact time when the contact 21 of theselected local selector is passing over the contact 23 thereon, thecontact 16 on the master selector S strikes the plug 19 and the line isagain closed. As in the bell-ringing operation, a holding circuit isclosed through the brushes 30 and 33, whereby the magnet 20 on theselected local selector is h'eld magnetized for a time. Said circuit isexactly the same as in the former case, except that the strip 26aconnects the brushes 28 instead of the strip 26. A holding circuit isalso formed through the master selector magnet 6, whereby it ismaintained energized. lVhenever the contact 16 is in line with any oneof the holes 18 in the master selector that corresponds to the positionof the contact 23 on any local selector, one of the strips 16h, 16,c1216d connects the ends of the brushes 16a. lf, for instance, theinstrument L3 is to be operated, then the holding circuit for the magnet6 is: from battery 67, through wire 82, brush 6a, strip 7 b, wire 83,brushes 16e and contact 16d, wire 84, to magnet 6 and to battery throughwire 70.

The circuit closed by the armature of relay M2 for operating the trip T2is as follows: from battery 63, through wire 64, relay armature andfront contact, wire 76, motor, contacts 21 and 23, wire 85 to tripmagnet53, through wire 86 to contact 331 and brush 30a, to battery. Currentflowing through this circuit energizes the magnet 53 on the trip T2,releases the semaphore X and also the indicator-controller or repeater Ias before described. The spring-actuated motor of the latter rotates thedisk 55, alternately making and breaking the line circuit a number oftimes corresponding to the notches in said disk. A suitable indicator,as a sounder K, is connected in the usual manner to the relay Z andshows that the semaphore-releasing operation has taken place.

To prevent another operation of the instrument until desired, theselector operator removes the plug 19, and opens the switches J and H.As soon as the line is thus broken, the movable contacts on all theinstruments are carried to the end of their travel by their respectivemotors and clutches, but produce no eiiect on the local apparatus,because the relays M', M2, M3, are denergized and their front ncontactsare not made.

This apparatus may be used for throwing any signal along a railway lineand for giving orders from the despatchers oiiice to any station alongthe line, without calling any other station.

In this mechanism, it will be noted that in one current condition on theline the motors are connected by the clutches with the movable contactsof the several local selectors; that these movable contacts rest againstabut-ments at the ends of the paths to which they can be driven by themotors, and, when thus resting against the abutments, the motors areheld completely in check. The first operation is to restore the movablecontacts to their initial or zero positions. This is done in the presentinstance by changing the current condition on the line and energizingthe line relays at the various stations; whereby the motors aredisconnected from the movable contacts, and thereupon the restoringmechanisms operate to move all the movable contacts back to theirinitial or starting positions. If then the line relays are dener- CivEgized simultaneously, the operating circuits are established throughthe selector magnets 20, all the clutches will be operated andsimultaneously connect the motors and the movable contacts, so that allthe movable contacts begin to move at the same time. Employment of afriction clutch, as shown herein, permits an instant and certainengagement of the clutch parts, no matter what their positions havebeen. The engagement and disengagement of the friction clutches is animportant factor in the accurate operation of the present machine. Afterthe movable contacts have been restored to their starting positions, asabove described, the plug contact is set at the master selector tooperate the desired translating device and the switches at the masterselector are so set that current may pass through the master selector byway of its movable contact and the variable or plug contact thereon, andthence to the main line B, but the line circuit is broken untilcontactsat the master selector are made. All the relays at the local selectorsare then denergized, and the motors, as above explained, operate themovable contacts synchronously or in a predetermined relation to eachother and to the movement of the master selector. The plug contact atthe master selector has been set either for throwing a particularsignal, or for ringing a bell at a particular local station. As soon asthe contacts of the master selector come together, the plug contactstops the movable contact, and they remain together, because the holdingcircuit from the local battery 6'? is made and maintains drivingconnection between the motor and the movable contact, although thelatter is stopped against the plug. Current, therefore, will flow on theline until the connection between the movable Contact and the plug atthe master selector is broken. lThis flow of current on the lineenergizes the line relays, and breaks the operating circuit at eachlocal selector, and causes the resetting of the movable contact to zeroat'each local selector, except at the selected local selector, where aholding circuit is made whereby its action is continued and its returnto zero is prevented until the movable contact of the local selector hascontinued its connection with the fixed contact for so long as to insureaction of the translating device to which that iiXed contact relates.When the movable contact of the selected local selector has moved to itsselecting position, corresponding to the setting of the master selector,a circuit is made including the local battery 63, through a translatingdevice whereby the latter is energized.

1n order to insure the certain operation of the mechanism, there is, inthe circuit of each translating device, a circuit controller (the pairof contacts 30, 88a) that is closed whenever a particular selectormagnet 2O is energized by the denergization of the line relay, but assoon as the selector magnet 20 is thus energized, a holding circuit isvmade through the contacts 30, 33 and brushes in combination with theproper contact strip therefor, whereby the energization of the selectormagnet 20 is maintained for a period suciently long to insure the propermaintenance of the circuit of the translating device. As soon, however,as the holding circuit is broken at the brushes 28, the selector magnet20 is denergized and the motors are disconnected from the movablecontact, whereupon the latter drops back to zero at the selected localselector.

F ig. 9 is a front elevation of a modified form of master selector; Fig.10 is a similar view of .a modified local selector; and Fig. 11 is adiagram of the connections for a part of a modified selective system.

In Fig. 9 is shown a modified form of the master selector, by means ofwhich, in conjunction with the local selector shown in Fig. 10, thedespatcher may call all the local stations on the line. F or thispurpose a fixed contact 24a is placed on each local selector, in thesame position, and in a corresponding position on the master selector isa plug-socket 18"-. rThe` despatcher, by inserting the plug 19 in thesocket 18a, causes the line to close when the contact 16 strikes saidplug, and the contacts 21 at that instant are in corresponding positionson the local selectors, namely, on the contacts 24, A circuit is closedthrough the bell-magnet 35 at each local station as follows: (Fig. 11)from the battery 63, through wire 64, relay armature and front contact,wire 76, motor, contacts 21 and 24a, wire 93, to magnet 35, and thencethrough wire 7 8, brushes 33a and 30 to battery. As shown in theaforesaid figures, the contact 24a is at the eXtreme end of the segment22, but said contact may be placed at any desired point thereon,provided that it occupies the same position on each local selector.

1n Fig. l1 the local selector is shown connected to a telegraph line,with which it is adapted to operate in a similar manner to the telephoneline shown in F ig. 8. 1n Fig. 1l the connections for the motor magnet,etc. are omitted, and only the necessary modifications are illustrated.1n a telegraph line, if any operator leaves his key open, it isimpossible for the despatcher at the end ofthe line to call an operatorat or beyond the open key. Therefore, means are provided for cutting outany open key, and at the same time breaking the ground wire at said keyin case the ground-plug has been left in the board. On the frame of thelocal selector is mounted an electromagnet 97, having a pin 98 on itsarmature that supports a weight 99. Said Weight when so supported,

presses a spring 96 against a post 95 and so maintains a connection fromthe line B to the ground, through wires 94 and 96, and the plug orswitch Z. Then the weight 99 falls, it lodges between two brushes 100,and so closes a shunt circuit around the key V through the wires 101 and102. The magnet 97 is energized from a battery 103 Whenever the dis 25is rotated. A contact 26b on the edge of said disk connects the brushes28 when the disk has turned a short distance, and current flows throughthe wires 104e and 105 and the magnet 97.

ln Fig. 10 the contact 26c is the connector for the brushes 28 tomaintain the holding circuit by which the contact 21 is kept upon thecontact 24a long` enough to ring the bell 311. Said holding circuit isthe same as shown in Fig. S, and is therefore omitted from Fig. 11. Theclosing of this circuit keeps the motor magnet energized after the linecircuit has been closed, as in the previous case. A device is providedin this form of the invention whereby the semaphore is released to thedanger position when the motor of the local selector at that station isrun down or entirely unwound. in the motor-frame are two strips 90 and91, that normally are a short distance apart. A lug 92 is fixed upon themotor spring or upon the primary cog-wheel, in such a position that itmay strike the strip 91 when the motor is run down, and force it againstthe strip 90. A circuit is thereby closed through said strips, the wires87 and 88, the battery S9, and the magnet 53 on the signal releasingmechanism. The latter then operates as hereinbefore described and thesemaphore goes to danger.

lVhat we claim is 1. In an electric selecting apparatus for railwaysemaphores the combination of a master selector comprising automaticselecting means for effecting a current change in a conductor on theexpiration of any selected one of a plurality of predetermined timeintervals, and manual means for effecting a current change in saidconductor; a series or" local selectors each controlled by currentchanges in said conductor and comprising: a motor having a predeterminedrate of movement, two circuits one containing an electromagnet and theother containing a circuit closer operated by said motor having apredetermined time interval different at each local selector from thatof any other local selector, means for controlling the motor action bysaid electromagnet, a circuit breaker controlled by said electromagnetfor energizing one circuit or the other, a semaphore controlling devicecontrolled by said circuit closer; and a semaphore controlled by saidlast mentioned controlling device.

2. In an electric selecting apparatus for railway semaphores, thecombination of a master selector comprising automatic selecting meansfor effecting a current change in a conductor on the expiration of anyselected one of a plurality of predetermined time intervals, and manualmeans for effecting a current change in said conductor; a series oflocal selectors each controlled by current changes in said conductor andcomprising a motor having a predetermined rate of movement, two circuitsone containing an electromagnet and the other containing a circuitcloser operated by said motor having a predetermined time intervaldifferent at `each local selector from that of any other local selector,means for controlling the motor action by said electromagnet, a circuitbreaker controlled by said electromagnet for energizing one circuit orthe other, a semaphore controlling device controlled by said circuitcloser; a semaphore controlled -by said last mentioned controllingdevice; an indicator controller in said conductor operated upon actionof said semaphore; and an indicator at the master selector operatedresponsively with said indicator controller.

B. ln an electric selecting device, the combination of a master selectorhaving automatic selecting means i'or effecting the current change in aconductor on the expiration ot any selected one ot a plurality ot'predetermined time intervals, and manual means for effecting a currentchange in said conductor; a series of local selectors each controlled bycurrent changes in said conductor and comprising a motor having apredetermined rate of movement, two circuits of which one contains anelectromagnet and the other contains a circuit closer operated by saidmotor after a predetermined time interval different at each localselector from that of any other local selector, means for controllingthe motor action of said electromagnet, a circuit breaker controlled bysaid electromagnet for energizing one circuit or the other, and atranslating device controlled by said circuit closer.

4. Inan electric selecting device, the combination of a master selectorhaving automatic selecting means for etlecting the current change in aconductor on the expiration of any selected one of a plurality ofpredetermined time intervals, and manual means for effecting a currentchange in said conductor; a series of local selectors each controlled bycurrent changes in said conductor and comprising a motor having apredetermined rate ot' movement, two circuits of which one contains anelectromagnet and the other contains a circuit closer operated by saidmotor after a predetermined time interval different at each localselector from that of any other local selector, a clutch between saidcircuit closer and said motor operated by said electromagnet, a circuitbreaker controlled by said electromagnet tor energizing one circuit orthe other, and a translating device controlled by said circuit closer.

5. In an electric selecting device, the combination or a master selectorhaving automatic selecting means for etlecting the curl rent change in aconductor on the expiration of any selected one of a plurality ofpredetermined time intervals, and manual means for eitecting a currentchange in said conductor; a series ot local selectors each controlled bycurrent changes in said conductor and comprising a motor having apredetermined rate of movement, tvvo circuits of which one contains anelectromagnet and the other contains a circuit closer operated by saidmotor after a predetermined time interval different at each localselector from that of any other local selector, means tor controllingthe motor action of said electromagnet, a circuit breaker controlled bysaid electromagnet for energizing one circuit or the other, atranslating device controlled by said circuit closer, an indicatorcontroller in said conductor at each local selector set in operationupon action or said translating device, and an indicator in saidconductor at the master selector operating responsively to saidindicator controller.

G. In an electric selecting device, the combination of a master selectorhaving automatic selecting means for eecting the current change in aconductor on the expiration of any selected one of a plurality ot'predetermined time intervals, and manual means for eecting a currentchange in said conductor; a series of local selectors each controlled bycurrent changes in said conductor and comprising a motor having apredetermined rate of movement, tivo circuits of which one contains anelectromagnet Vand the other contains a circuit closer operated by saidmotor after a predetermined time interval dierent at each local selectorfrom that of any other local selector, a clutch between said circuitcloser and said motor operated by said'electromagnet, a circuit breakercontrolled by said electromagnet for energizing one circuit or theother, a translating device controlled by said circuit closer, anindicator controller in said conductor at each local selector set inoperation upon action Vof said translating device, and an indicatorfinsaid conductor at the master selector operating responsively to saidindicator controller.

7. In an electric selecting apparatus, the combination of a masterselector comprising automatic means for electing a current change in theconductor on the expiration ot any selected one ot a plurality ofpredetermined time intervals, and manual means tor effecting a currentchange in said conductor;

a series of local selectors each controlled by current changes in saidconductor and comprising a motor having a predetermined rate ofmovement, twocircuits of Which one contains an electromagnet and theother contains a circuit closer operated by said motor after apredetermined time interval different at each local selector from thatof any other selector, means ior connecting and disconnecting the motorand the circuit closer by action ot said electromagnet, means forrestoring the circuit closer to a zero position when the motor isdisconnected therefrom, a circuit breaker controlled byy saidelectromagnet for energizing one circuit or the other and actuated tobreak the circuit of the circuit closer While the same is returning tozero position, and a translating device controlled by said circuitcloser.

8. in an electric selecting apparatus, the combination ot a masterselector comprising automatic selecting means for eecting a currentchange in the conductor on the eX- piration of any selected one ot aplurality of predetermined time intervals, and manual means foreffecting a current change in said conductor; aseries ot local selectorseach controlled by current changes in said conductor and comprising amotor having a predetermined rate of movement, two circuits onecontaining an electro-magnet and the other containing a circuit closeroperated by said motor having a predetermined time interval dilierent ateach local selector from that of any other local selector, means torconnecting and disconnecting the motor and the circuit closer by actionof said electromagnet, a translating device controlled by said circuitcloser, a circuit breaker controlled by said electromagnet for makingthe circuit thereof for a predetermined time atter action of saidtranslating device; an indicator controller in said conductor operatedupon action of said translating device; and an indicator in saidconductor at the master selector operating rcsponsively to saidindicator controller.

9. in an electric selecting apparatus, the combination of a masterselector comprising automatic selecting means for eltecting a currentchange in the conductor on the expiration of any one of a plurality ofpredetermined time intervals, and manual means tor effecting a currentchange in said conductor; a series of local selectors each controlled bycurrent changes in said conductor and comprising a motor having apredetermined rate or" movement, tvvo circuits one containing anelectromagnet and the other containing a circuit closer operated by saidmotor after a predetermined time interval ditferent at each localselector from that ot any other local selector, a clutch operated bysaid electromagnet for connecting and disconnecting the motor and thecircuit closer, a circuit breaker operated With said clutch forenergizing one circuit or the other, and a translating device controlledby the said circuit closer.

10. In an electric selecting apparatus, the combination of a masterselector comprising automatic selecting means for effecting a currentchange in the conductor on the eX- piration of any one of a plurality ofpredetermined time intervals, and manual means for effecting a currentchange in said conductor; a series of local selectors each controlled bycurrent changes in said conductor and comprising a motor having apredetermined rate of movement, tWo circuits one containing anelectromagnet and the other containing` a circuit closer operated bysaid motor after a predetermined time interval dilerent at each localselector from that of any other local selector, a clutch operated bysaid electromagnet for connecting and disconnecting the motor and thecircuit closer, a translating device controlled by said circuit closer,a circuit breaker operated ivith said clutch for breaking the circuit ofthe circuit closer upon operation of said translating device, and formaking the circuit of the electromagnet.

ll. In an electric selecting apparatus, the combination of a masterselector comprising variable automatic selecting means for @Hecting acurrent change in a conductor on the expiration of any selected one ot'a plurality of predetermined time intervals, and manual means foreffecting a current change in said conductor; a series of localselectors each controlled by current changes in said conductor andcomprising a motor having a predetermined rate of movement and selectingmeans for eilecting a currentchange upon the expiration of apredetermined time interval different at each local selector from thatof any other local selector, tivo circuits one containing anelectromagnet and the other containing the said circuit closer, meansfor controlling the action ot' the motor upon said circuit closer bysaid electromagnet, a circuit breaker controlled by said electromagnetfor energizing one circuit or the other, and a translating devicecontrolled by said circuit closer.

12. In an electric selecting apparatus, the combination of a masterselector comprising variable automatic selecting means for eecting acurrent change in a conductor on the expiration of any selected one of aplurality of predetermined time intervals, and manual means foreffecting a current change in said conductor; a series of localselectors each controlled by current changes in said conductor andcomprising a motor having a predetermined rate of movement and selectingmeans for effecting a current change upon the expiration of apredetermined time interval different at each local selector from thatof any other local selector, a clutch operated by said electromagnet forconnecting and disconnecting the motor `and said circuit closer, meansfor restoring the circuit closer to a zero position when the clutch isdisconnected therefrom, a translating device controlled by said circuitcloser, a circuit breaker operated by said clutch for energizing onecircuit or the other and constructed to break the circuit of the circuitcloser While it is returning to its zero position. a

13. In an electric selecting apparatus, the combination of a masterselector comprising variable automatic selecting means for eiiecting acurrent change in a conductor on the expiration of any selected one of aplurality of predetermined time intervals, and manual means foreffecting a current change in said conductor; a series of localselectors each controlled by current changes in said conductor andcomprising a motor having a predetermined rate of movement and selectingmeans for eiiecting a current change upon .the expiration of apredetermined time interval different at each local selector from thatof any other local selector, a clutch operated by said electromagnet forconnecting and disconnecting the motor and said circuit closer, meansfor restoring the circuit closer to a zero position When the clutch isdisconnected therefrom, a translating device controlled by said circuitcloser, a circuit breaker operatedby said clutch for energizing onecircuit or the other; an indicator controller in said conductor operatedupon action ot' said translating device; and an indicator at the masterselector operated responsively to said indicator controller.

SELDEN It. IVRIGHT. CHARLES L. DEIHLE.

lVitnesses:

C. W. CARROLL, D. Gunn-EE.

